James Lefrère
Berlin, DE
jlefrere@gmail.com

Nerd-sniped by a young Canadian-Russian in 2017, now this is my life. I am a full-stack developer interested in projects that benefit Ethereum and solve real problems.

Experience


CEO
March 2024
 — 
Present
Funemployed

Taking some time to work on my own projects: continuing some of the late Nikolai Mushegian's work, working on TLSNotary plugins, staying up to date with AA, improving my Solidity chops, going to hackathons, etc.

Lead full-stack developer
February 2022
 — 
February 2024
Aura Finance

Core team, full-stack development for a high-profile DeFi project. Responsible for the frontend, API, AWS infra, subgraphs, Snapshot, dashboards, KYC, and more.

  • Created the AURA airdrop including data mining, anti-sybil measures, etc.
  • Helped the protocol reach over $750m in TVL
  • Integrated with many partner projects including Balancer, Lido, Rocket Pool
Lead full-stack developer
February 2020
 — 
March 2022
mStable

Core team, full-stack Ethereum development for one of the first stablecoin AMMs.

Full-stack developer
December 2017
 — 
December 2019
Colony

My introduction to Ethereum. Nascent dApp development, local-first design, focus on tooling.

Full-stack developer
April 2016
 — 
December 2017
Candis GmbH

At the time, Meteor monolith with React, MongoDB, etc. Focused on data integrity and performance.

Languages


English:
Native speaker
German:
Katastrophal
Portuguese:
É o que é

Skills


Ethereum:
Dapps (since 2017), DeFi, Indexing APIs, Foundry, Hardhat
Languages:
TypeScript (♥), Solidity (basic), Rust (basic)
Frontend:
React, wagmi/viem, MUI, React Query, Next/Vercel
Backend:
AWS (CDK, DynamoDB, RDS Aurora, ECS, Lambda), Nest.js
TCOB:
Taking Care Of Business

Interests


Asian dramas:
그들은 단순히 더 낫다
Games:
Roguelike, Balatro, Halo, Helldivers
Geoguessr:
Gold no move
Yoga:
–